Shoot Flapping Bird

This game's goal is to shoot bird which is flappy by arrow.
There is a bird which fly across mountain and sky.
You must shoot this flapping bird.
If you touch right screen, arrow will appear.
Before fire arrow, look arrow speed bar and bird's upward and downward movement carefully.
This bird flaps upward and downward continuously.
Probably shooting bird will not be easy.
Boast you shoot ability by this game.
Compare your score with other's in global leaderboard.